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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 138 for “"CAROTENE"”.
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Impact of Dietary Composition and Beta-Carotene Isomeric Structure on Bioconversion of Beta-Carotene to Vitamin a in Gerbils
In conclusion, betaC bioconversion to VA was independently and adversely affected by consumption of low dietary fat and citrus pectin. 9-Cis betaC was less and 13cbetaC was more than the currently assigned retinol equivalency of 50% of atbetaC. Thus, the actual contribution of betaC to the VA …
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Dairy ingredients-based emulsions and beta-carotene delivery
… representative lipophilic bioactive nutrient, β-carotene, was encapsulated into these model emulsions. Emulsion properties, and the in vitro digestion, release, bioaccessibility and absorption by enterocytes of encapsulated βcarotene were investigated. Re-dispersible dry forms of these model …
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Rumeno-Reticular Losses of Vitamin a and Carotene
Made available in DSpace on 2014-12-05T17:47:52Z (GMT). No. of bitstreams: 1 6305111.pdf: 5702565 bytes, checksum: ab7fa71a5803ab16cb9f7268254e213c (MD5) Previous issue date: 1963
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Absorption, transport, and subcellular distribution of beta-carotene
The search for possible in vivo functions of carotenoids has been complicated by the fact that answers to many basic questions concerning carotenoid absorption, transport, and subcellular distribution are not well defined.
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The relationship of dietary beta-carotene intake and serum beta- carotene levels to the development of oral lesions in smokeless tobacco users
… the relationship of dietary and serum beta-carotene to the development of oral lesions in smokeless tobacco users. Eighty eight smokeless tobacco users without oral lesions and 18 with lesions participated in the study. Dietary intake of beta-carotene, personal health habits and selected …
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FACTORS AFFECTING THE VITAMIN A AND ß-CAROTENE CONTENTS OF MILK
The factors affecting the vitamin A and s-carotene contents of milk were investigated. A series of short- and long-term experiments were conducted using the University of Saskatchewan dairy herd and Saskatoon commercial fluid milk, respectively. The vitamin A potency of the milk was significantly …
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Effect of Chronic Ethanol Consumption on Vitamin a Metabolism (beta-Carotene, Rats)
… occurred when either retinyl acetate or (beta)-carotene were the dietary source of vitamin A. In comparison to rats fed a moderate fat diet, a greater decrease of liver vitamin A levels occurred in ethanol-fed rats on a high fat diet. Decreased hepatic vitamin A storage resulted despite only a …
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Carotene Utilization and Other Factors Influencing Vitamin a Nutrition Ofrats and Ruminants
Embargo set by: Seth Robbins for item 60598 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs
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Countercurrent separation of chlorophyll, carotene and other components from an extract of dehydrated alfalfa
Call number: LD2668 .T4 1954 C55
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Countercurrent separation of chlorophyll, carotene and other components from an extract of dehydrated alfalfa
Call number: LD2668 .T4 1954 C55
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Investigations of the action of vitamin A and beta carotene on reproductive performance in pigs
The reproductive efficiency of the breeding sow is a major limitation to profitability in the pork industry. Investigations on the treatment of sows with retinol proprionate or retinol palmitate and their effect on reproductive function were undertaken. The objectives of this work were to …
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A Study of the Reaction of Antimony Trichloride With Vitamin A, Carotene, and Associated Substances.
… wherein a color is developed when vitamin A or carotene is treated with antimony trichloride; and (b) to determine, if possible, whether this reaction is due to vitamin A or to certain unsaturated fatty acids, fatty acid esters, or other substances found in oils.
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Effects of oil types and beta-carotene in repeated deep-fat frying of French fries
… This prompted the study of the effect of β-carotene as an antioxidant in deep-fat frying. β-carotene was added to palm olein at a concentration equivalent to the total carotenoids in crude palm oil. With respect to p-Anisidine value, the antioxidant contribution of carotenoids was negligible …
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Photoprotective role of beta -carotene and antioxidant enzymes: A shield against ultraviolet damage in Dunaliella bardawil
… massive quantities of inter-thylakoid beta-carotene during exposure to stress or high irradiances of photosynthetically active radiation (PAR: 400-700 nm) while Dunaliella salina (UTEX 200) lacks this ability. Cells were cultured in two irradiances (150 and 35 mumol photons …
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An investigation of the association of colonic adenomatous polyps and nutritional status of retinol and carotene
… was evaluated that lower dietary consumption of carotene or retinol or lower serum levels of beta carotene or retinol are associated with development of colonic adenomas. To evaluate this hypothesis, selected patients who were to undergo colonoscopy to determine polyps status were asked to …
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The effects of supplementation of β-carotene during the close-up period on cows, colostrum, and calves
… antioxidant that should be considered is β-carotene. β-Carotene is found naturally in many plants and is a dual-purpose nutrient, having both provitamin A and antioxidative functions. Ingested β-carotene can be cleaved into two molecules of retinol if the animal is in need of retinoids. If …
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Evaluation of Dunaliella isolates from Sua Pan (Botswana) solar salt evaporation ponds for production of ß-carotene
… application in commercial production of ß-carotene. The main goal was to establish if the species are of commercial value with regard to massive accumulation of carotenoids, specifically ß-carotene. The study assessed the productivity of the environmental isolates by means of growth and …
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Relationships of the carotene and vitamin A concentration in the blood, milk and feed of dairy animals
… modified for protein balance. Relationships of carotene and Vitamin A concentrations in the blood, milk and feed were then studied. An attempt was made to correlate the various factors involved, the variables being: period of gestation; time after calving; intake of the vitamin and its precursor …
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